Kits, their production and method for brightening coating of teeth

1. Kit for brightening of teeth, consisting essentially of the following separate components A, B and C:

A an alkaline, aqueous sodium fluoride solution, optionally comprising a gel former,

B a dried gel, present in film strips, comprising:

B1 at least one gel former,

B2 phosphate or hydrogen phosphate ions,

B3 optionally at least one amino acid,

B4 optionally fluoride,

B5 optionally glycerol,

B6 optionally carboxylic acid or a buffer system for a pH value from 4 to 7,

C a dried gel, present in film strips, comprising:

C1 at least one gel former,

C2 calcium ions,

C3 optionally glycerol.

2. Kit according to claim 1 , in which

B is a 50 to 1000 μm thick gel film.

3. Kit according to claim 1 , in which

C is a 50 μm to 5 mm thick gel film.

4. Kit according to claim 1 , in which

0.05 to 3 mol of calcium ions, Ca 2+ , per liter of gel, as measured prior to drying of the film, are contained in C.

5. Kit according to claim 1 , in which

0.01-2 mol of phosphate or hydrogen phosphate ions per liter of gel, as measured prior to drying of the film, are contained in B.

6. Kit according to claim 1 , in which the gel former is gelatin.

7. Kit according to claim 6 , in which the gelatin concentration in B and C is 1-15 wt. % each.

8. Kit according to claim 7 , in which the gelatin concentration is 5-10 wt. %.

9. Kit according to claim 1 , in which the phosphate or hydrogen phosphate ions are present as dissociated Na 2 HPO 4 , (NH 4 ) 2 HPO 4 or K 2 HPO 4 .

10. Kit according to claim 1 , in which the calcium ions are present as dissociated CaCl 2 .

11. Method for preparation of a kit for brightening of teeth, comprising the steps:

01 Preparing a solution A according to claim 1 , in which the sodium fluoride solution is set at pH 12-14 and optionally mixed with 2-20 wt. % gelatin;

02 Preparing a gel B according to claim 1 , in which

0.1-2 mol/L NaH 2 PO 4 , 0.01-2 mol/L NaF, 0.05-1 mol/L amino acid, and 2-10 wt. % acetic acid are dissolved in water,

the pH value is set with NaOH at 3.5-6,

the solution is processed to a viscous gel with 10-40 wt. % glycerol and 5-20 wt. % gelatin,

200-400 μm thick gel films are spread from the still liquid gel, dried and cut into matching pieces or strips,

03 Preparing gel C according to claim 1 , in which

a 0.5 to 3 M calcium chloride solution is prepared,

the pH value is set at 3.5-6.0 with NaOH,

the solution is processed to a viscous gel with 10-40 wt. % glycerol and 5-20 wt. % gelatin,

200-400 μm thick gel films are spread from the still liquid gel, dried and cut into matching pieces or strips.

12. Method for cosmetic brightening of teeth, comprising:

providing a kit according to claim 1 ,

pretreating a tooth surface with solution A or applying and massaging in solution A,

applying gel B, according to claim 1 , to a tooth surface,

applying gel C, according to claim 1 , to gel B,

wherein an action time is two to ten hours.